86285391 has 8 divisors (see below), whose sum is σ = 117722880. Its totient is φ = 56185752.

The previous prime is 86285383. The next prime is 86285401. The reversal of 86285391 is 19358268.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 86285391 - 2³ = 86285383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86285321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334311 + ... + 334568.

It is an arithmetic number, because the mean of its divisors is an integer number (14715360).

Almost surely, 2^86285391 is an apocalyptic number.

86285391 is a deficient number, since it is larger than the sum of its proper divisors (31437489).

86285391 is a wasteful number, since it uses less digits than its factorization.

86285391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668925.

The product of its digits is 103680, while the sum is 42.

The square root of 86285391 is about 9288.9930024734. The cubic root of 86285391 is about 441.8882196536. Note that the first 3 decimals are identical.

The spelling of 86285391 in words is "eighty-six million, two hundred eighty-five thousand, three hundred ninety-one".